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DECEMBER 2014201 VOLUME 23~ ISSUE 12 Lynchburg, VA, Inc
GEM & MINERAL JOURNAL Official Monthly Publication of the Gem & Mineral Society of DECEMBER 2014201 VOLUME 23~ ISSUE 12 Lynchburg, VA, Inc WWW.LYNCHBURGROCKCLUB.ORG Presidents Message: Hello To All, will supply the delicious fried chicken so we are counting What a great auction at the November GMSL meeting. on everyone else to bring in vegetables, pasta salads, We picked out a lot of different specimens in hopes of potato salads etc, and please don’t forget some sweet having something for everyone to bid on. It was a great desserts. We also have a Dirty Santa gift exchange. All success because of all the members and visitors that you need to do to participate is bring in a wrapped gift of came out and participated. A big thank you to all. I hope about $15.00 value that is hobby related. All gifts will be everyone got a nice specimen to add to their collection. It placed on a table and each person will draw a number, may be a long time, if ever, we are able to have such nice which will be the order for opening the gifts. Number one pieces as the Burmese Jade, beautiful Agates, and nice will choose a package and open it. Number two will then pieces of Turquoise just to name a few of the most open a gift and if the previously opened gift is more to popular specimens. We will keep our eyes open for their liking they can make a trade, and so on until all gifts collections for sale in the future. -
Hypersthene Syenite and Related Rocks of the Blue Ridge Region, Virginia1
BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA V o l. 27, pp. 193-234 June 1, 1916 HYPERSTHENE SYENITE AND RELATED ROCKS OF THE BLUE RIDGE REGION, VIRGINIA1 BY THOMAS L. WATSON AND JUSTUS H. CLINE (Presented before the Society December 29, 191k) CONTENTS Page Introduction.................................................................................................................. 194 Previous geologic work............................................................................................. 196 Quartz-bearing hypersthene-andesine syenite...................................................... 197 Distribution.......................................................................................................... 197 Megascopic character......................................................................................... 198 Microscopic character........................................................................................ 199 Chemical composition and classification...................................................... 202 Comparison with quartz monzonite.............................................................. 204 Origin and application of name............................................................. 204 Chemical composition................................................................................ 205 Comparison with akerite.................................................................................. 206 Comparison with syenite (andesine anorthosite) of Nelson County, Virginia............................................................................................................. -
Mineral Collecting Sites in North Carolina by W
.'.' .., Mineral Collecting Sites in North Carolina By W. F. Wilson and B. J. McKenzie RUTILE GUMMITE IN GARNET RUBY CORUNDUM GOLD TORBERNITE GARNET IN MICA ANATASE RUTILE AJTUNITE AND TORBERNITE THULITE AND PYRITE MONAZITE EMERALD CUPRITE SMOKY QUARTZ ZIRCON TORBERNITE ~/ UBRAR'l USE ONLV ,~O NOT REMOVE. fROM LIBRARY N. C. GEOLOGICAL SUHVEY Information Circular 24 Mineral Collecting Sites in North Carolina By W. F. Wilson and B. J. McKenzie Raleigh 1978 Second Printing 1980. Additional copies of this publication may be obtained from: North CarOlina Department of Natural Resources and Community Development Geological Survey Section P. O. Box 27687 ~ Raleigh. N. C. 27611 1823 --~- GEOLOGICAL SURVEY SECTION The Geological Survey Section shall, by law"...make such exami nation, survey, and mapping of the geology, mineralogy, and topo graphy of the state, including their industrial and economic utilization as it may consider necessary." In carrying out its duties under this law, the section promotes the wise conservation and use of mineral resources by industry, commerce, agriculture, and other governmental agencies for the general welfare of the citizens of North Carolina. The Section conducts a number of basic and applied research projects in environmental resource planning, mineral resource explora tion, mineral statistics, and systematic geologic mapping. Services constitute a major portion ofthe Sections's activities and include identi fying rock and mineral samples submitted by the citizens of the state and providing consulting services and specially prepared reports to other agencies that require geological information. The Geological Survey Section publishes results of research in a series of Bulletins, Economic Papers, Information Circulars, Educa tional Series, Geologic Maps, and Special Publications. -
Jun 2012 Rockhounder Starting Point
Page 1 THE JUNE 2 0 1 2 ROCKHOUNDER PURPOSE: The purpose of the Gem, Lapidary, and Mineral Society of Montgomery County MD., Inc. is “To increase knowledge and popular interest in earth sciences, geology, mineralogy, paleontology, lapidary arts, and related subjects.” REGULAR MEETING: Meetings are held the 2nd Monday of the month from September to June. The Society will meet on Monday June 11th in the dining room of the Rockville Senior Center, 1150 Carnation Drive, Rockville. A short business meeting will begin at 7:45 pm but the room is available to us at 7:30 pm so come early and chat with old friends. The speaker will Bob Farrar . The topic will be “The Cruzeiro Mine: World's Greatest Tourmaline Mine.” Bob Farrar has been collecting rocks, minerals, and fossils for over 40 years. He has traveled extensively in pursuit of rock collecting, including making several trips to Brazil. He has written a number of articles about his travels for Rock & Gem and other publications. Bob holds a Ph. D. in entomology, and works for the U. S. Dept. Of Agriculture in Beltsville, MD. A resident of Bowie, he is also a dealer of Minerals & Fossils. THE BOARD OF DIRECTORS will possibly meet Monday, June 18, at the Home of Andy Muir. The President will notify Board members if a meeting is necessary. All Board members are expected to at- tend if meeting is called. Any member is welcome to attend but kindly let Andy know if you plan to attend at: <[email protected]> or phone 301 990 1370. -
Chesapecten, a New Genus of Pectinidae (Mollusca: Bivalvia) from the Miocene and Pliocene of Eastern North America
Chesapecten, a New Genus of Pectinidae (Mollusca: Bivalvia) From the Miocene and Pliocene of Eastern North America GEOLOGICAL SURVEY PROFESSIONAL PAPER 861 Chesapecten) a New Genus of Pectinidae (Mollusca: Bivalvia) From the Miocene and Pliocene of Eastern North America By LAUCK W. WARD and BLAKE W. BLACKWELDER GEOLOGIC.AL SURVEY PROFESSIONAL PAPER 861 A study of a stratigraphically important group of Pectinidae with recognition of the earliest described and figured Anzerican fossil UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON 1975 UNITED STATES DEPARTMENT OF THE INTERIOR ROGERS C. B. MORTON, Secretary GEOLOGICAL SURVEY V. E. McKelvey, Director Library of Congress Cataloging in Publication Data Ward, Lauck W Chesapecten, a new genus of Pectinidae (Mollusca, Bivalvia) from the Miocene and Pliocene of eastern North America. (Geological Survey professional paper ; 861) Includes bibliography and index. Supt. of Docs. no.: I 19.16:861 1. Chesapecten. 2. Paleontology-Tertiary. 3. Paleontology-North America. I. Blackwelder, Blake W., joint author. II. Title III. Series: United States. Geological Survey. Professional paper : 861. QE812.P4W37 564'.11 74-26694 For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402- Price $1.45 (paper cover) Stock Number 2401-02574 CONTENTS Page Abstract --------------------------------------------------------------------------------- 1 Introduction -------------------------------------------------.----------------------------- 1 Acknowledgments ______________________________ -
The ECPHORA the Newsletter of the Calvert Marine Museum Fossil Club Volume 26 Number 1 March 2011
The ECPHORA The Newsletter of the Calvert Marine Museum Fossil Club Volume 26 Number 1 March 2011 Stranded Beaked Whale Features Shark Tooth Hill, California Homage to Jean Hooper Calvert Cliffs at Last Serpulid Worm Shells, Corrected Inside May 21 Lecture by Catalina Pimiento ―Giant Shark Babies from Panama‖ Dolphin Limb Donated by USNMNH President’s Message CMMFC Shirt Order(See Page 12) Unfortunately, this adult male beaked whale, Mesoplodon grayi, stranded Fossil Club Field Trips in western Victoria, Australia in January. Museum Victoria collected the and Events whole animal for future research. See an up-close image of the beak on Stranded Beaked Whale page 11. Photo © by Sean Wright; submitted by Erich Fitzgerald. ☼ The Smithsonian Institution recently donated these small dolphin flipper bones to the comparative osteology collection at the Calvert Marine Museum. Many thanks to Charley Potter for arranging/facilitating the donation. ☼ CALVERT MARINE MUSEUM www.calvertmarinemuseum.com 2 The Ecphora March 2011 President's Message in 2009. The phosphate is used for fertilizer and animal feed; the phosphoric acid ends up in that cold bottle of Coca Cola you swig after a day of The weather is warming up in eastern North collecting. Carolina, but it's been a tough 12 months for Much of the demand comes from the collecting south of the border. PCS Aurora skyrocketing need for fertilizer, especially overseas (Miocene) is still closed to fossil collecting as is the in India and China. Late last year rumors circulated Martin Marietta mine in Belgrade (Late Oligocene, that the Chinese were trying to buy the company. -
Geology and Mineral Deposits of the Roseland District of Central Virginia
Geology and Mineral Deposits of the Roseland District of Central Virginia U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1371 Geology and Mineral Deposits of the Roseland District of Central Virginia By NORMAN HERZ and ERIC R. FORCE U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1371 Relations among anorthosite, ferrodioritic rocks, and titanium-mineral deposits in Nelson and Amherst Counties in the Blue Ridge of Virginia UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON: 1987 DEPARTMENT OF THE INTERIOR DONALD PAUL HODEL, Secretary U.S. GEOLOGICAL SURVEY Dallas L. Peck, Director Library of Congress Cataloging in Publication Data Herz, Norman, 1923- Geology and mineral deposits of the Roseland district of central Virginia. (U.S. Geological Survey professional paper; 1371) Bibliography: p. Supt. of Docs, no.: I 19.16:1371 1. Geology-Virginia-Roseland Region. 2. Mines and mineral resources- Virginia-Roseland Region. I. Force, Eric R. II. Title. III. Series: Geological Survey professional paper ; 1371. QE174.R67H47 1987 557.55'49 85-600280 For sale by the Books and Open-File Reports Section, U.S. Geological Survey, Federal Center, Box 25425, Denver, CO 80225 CONTENTS Page Abstract_____________________________ 1 Post-Grenville rocks-Continued Introduction_________________. 1 Surficial deposits ___ 33 General geologic and economic setting _. I Deposits of present valley systems _____________ 33 Previous geological work ____________ 3 Inactive boulder fans ______________________ 33 Mapping and stratigraphy _____. 3 Ridgetop gravel deposits ______________________ 33 Economic geology _________. 4 Radiometric age determinations ____________________ 33 Proposed lithologic units _______. 4 Previous determinations in the region ______________ 33 Field work _______________________ 5 New age data __________________ 34 Acknowledgments _________________ 5 Petrogenesis of the igneous rocks _____________________ 35 Pre-Grenville and Grenville rocks _________ 6 Origin of anorthosite and ferrodiorites ______________ 35 Banded granulites and associated rocks. -
Fossil Footnotes
Fossil Footnotes Central Texas Paleontological Society March 2005 President’s Report FOSSIL of the MONTH Many of you have seen this before but it is worth Hi to all. Mercy this weather has been cold and showing again. It is a spectacular, perfectly nasty. I have been suffering with a bad cold as a preserved Cidarid sea urchin found by Mike result and am just now getting over it. I hope Smith a couple of years ago on a field trip to everyone else has made it through unscathed. Lake Travis hosted by Hal Hopkins. These are The one good thing, with all this rain, hopefully extremely rare and a once in a lifetime find. a lot of fossils will weather out for us to collect. Lower Cretaceous - Lower Glen Rose Formation We had a great February meeting with excellent attendance. A lot of new faces and new members attended which we were all very happy to see. Welcome to all of the new members. On a cool wet Saturday February the 19th four club members volunteered their time to man a table at the Austin Children’s Museum grand opening of there Dinosaur Expo. The four were Marcelle Spilker, David Lindberg, Mike Smith and Danny Harlow. There was excellent attendance and we all had a lot of fun showing the kids and parents Fossils of Texas. It will be open every Saturday on into the summer so go by a see it if you get a chance. See you at the March meeting! Danny March Meeting to be held on CTPS Minutes February 8, 2005 Tuesday, March 8, 2005 The meeting had a great turn out with several The March meeting will be at the LCRA new members. -
GEMSTONES by Donald W
GEMSTONES By Donald W. Olson Domestic survey data and tables were prepared by Christine K. Pisut, statistical assistant, and the world production table was prepared by Glenn J. Wallace, international data coordinator. Gemstones have fascinated humans since prehistoric times. sustaining economically viable deposits (U.S. International They have been valued as treasured objects throughout history Trade Commission, 1997, p. 23). by all societies in all parts of the world. The first stones known The total value of natural gemstones produced in the United to have been used for making jewelry include amber, amethyst, States during 2001 was estimated to be at least $15.1 million coral, diamond, emerald, garnet, jade, jasper, lapis lazuli, pearl, (table 3). The production value was 12% less than the rock crystal, ruby, serpentine, and turquoise. These stones preceding year. The production decrease was mostly because served as status symbols for the wealthy. Today, gems are not the 2001 shell harvest was 13% less than in 2000. worn to demonstrate wealth as much as they are for pleasure or The estimate of 2001 U.S. gemstone production was based on in appreciation of their beauty (Schumann, 1998, p. 8). In this a survey of more than 200 domestic gemstone producers report, the terms “gem” and “gemstone” mean any mineral or conducted by the USGS. The survey provided a foundation for organic material (such as amber, pearl, and petrified wood) projecting the scope and level of domestic gemstone production used for personal adornment, display, or object of art because it during the year. However, the USGS survey did not represent possesses beauty, durability, and rarity. -
Stratigraphic Revision of Upper Miocene and Lower Pliocene Beds of the Chesapeake Group, Middle Atlantic Coastal Plain
Stratigraphic Revision of Upper Miocene and Lower Pliocene Beds of the Chesapeake Group, Middle Atlantic Coastal Plain GEOLOGICAL SURVEY BULLETIN 1482-D Stratigraphic Revision of Upper Miocene and Lower Pliocene Beds of the Chesapeake Group, Middle Atlantic Coastal Plain By LAUCK W. WARD and BLAKE W. BLACKWELDER CONTRIBUTIONS TO STRATIGRAPHY GEOLOGICAL SURVEY BULLETIN 1482-D UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON: 198.0 UNITED STATES DEPARTMENT OF THE INTERIOR CECIL D. ANDRUS, Secretary GEOLOGICAL SURVEY H. William Menard Director Library of Congress Cataloging in Publication Data Ward, Lauck W Stratigraphic revision of upper Miocene and lower Pliocene beds of the Chesapeake group-middle Atlantic Coastal Plain. (Contributions to stratigraphy) (Geological Survey bulletin ; 1482-D) Bibliography: p. Supt. of Docs. no. : I 19.3:1482-D 1. Geology, Stratigraphic-Miocene. 2. Geology, Stratigraphic-Pliocene. 3. Geology- Middle Atlantic States. I. Blackwelder, Blake W., joint author. II. Title. III. Series. IV. Series: United States. Geological Survey. Bulletin ; 1482-D. QE694.W37 551.7'87'0975 80-607052 For sale by Superintendent of Documents, U.S. Government Printing Office Washington, D.C. 20402 CONTENTS Page Abstract __ Dl Introduction 1 Acknowledgments ____________________________ 4 Discussion ____________________________________ 4 Chronology of depositional events ______________________ 7 Miocene Series _________________________________ g Eastover Formation ___________________________ 8 Definition and description ___________________ -
Assemblage, Ostrea Disparalis, Chione ?T!O Montmorillonite Was the Dominant Clay Min Cyma, and Ecphora Qttadricostata Tnnbilicata
TIJLANE STIJDIES IN GEOLOGY Volume 4, Number 2 May 27, 1966 STRATIGRAPHY OF THE UPPER MIOCENE DEPOSITS IN SARASOTA COUNTY, FLORIDA HERBERT C. EPPERT . .TR . JJEPAH'l'JfEN'l' OF' GEOLOGY 'ITL.1 N£' UNII'b'RSJ'JT CONTENTS Page I. ABSTRACT __ ____ _ 49 11. INTROD UCTION 50 III. ACKNOWLEDGMENTS 50 IV. PROCEDURE 50 V. STRATIGRAPHY 52 VI. MINERAL ANALYSIS OF THE AQUICLUDE 60 VII. SUMMARY ____ __ _ 60 VIII. LITERATURE CITED 61 I. ABSTRACT one ttlocyma, Ostrea cf. 0. tamiamiensis, The presence of undisputed Upper Mio Ostrea tamiamiensis monroensis, and En cene sediments in Sarasota County, Florida, cope macrophora tamiamiensis. has nor been widely known. Most authors Within the Upper Miocene deposits exists have stared that the Middle Miocene Haw an impermeable bur porous bed character thorn Formation is overlain by Pliocene to ized by a decrease in radioactivity and elec Recent deposits. The Upper Miocene is rep trical resistivity. These characteristics are resented in southern Florida by the Tamiami indicative of clay and the interpretation of Formation. The Upper Miocene age deter x-ray diffraCtion patterns verified the pre mination is based on the characteristic faunal dominance of clay minerals in rhe aquiclude. assemblage, Ostrea disparalis, Chione ?t!o Montmorillonite was the dominant clay min cyma, and Ecphora qttadricostata tnnbilicata. eral with lesser amounts of attapulgire and Fossil mollusks, echinoderms, and bryozoans alpha sepiolite. collected from ourcrops, quarries, and sink holes in this area definitely confirm the Based on evidence presented in this paper, presence of Upper Miocene sediments in the Upper Miocene deposits occurring in Sarasota County. -
Evolutionary Paleoecology of the Maryland Miocene
The Geology and Paleontology of Calvert Cliffs Calvert Formation, Calvert Cliffs, South of Plum Point, Maryland. Photo by S. Godfrey © CMM A Symposium to Celebrate the 25th Anniversary of the Calvert Marine Museum’s Fossil Club Program and Abstracts November 11, 2006 The Ecphora Miscellaneous Publications 1, 2006 2 Program Saturday, November 11, 2006 Presentation and Event Schedule 8:00-10:00 Registration/Museum Lobby 8:30-10:00 Coffee/Museum Lobby Galleries Open Presentation Uploading 8:30-10:00 Poster Session Set-up in Paleontology Gallery Posters will be up all day. 10:00-10:05 Doug Alves, Director, Calvert Marine Museum Welcome 10:05-10:10 Bruce Hargreaves, President of the CMMFC Welcome Induct Kathy Young as CMMFC Life Member 10:10-10:30 Peter Vogt & R. Eshelman Significance of Calvert Cliffs 10:30-11:00 Susan Kidwell Geology of Calvert Cliffs 11:00-11-15 Patricia Kelley Gastropod Predator-Prey Evolution 11:15-11-30 Coffee/Juice Break 11:30-11:45 Lauck Ward Mollusks 11:45-12:00 Bretton Kent Sharks 12:00-12:15 Michael Gottfried & L. Compagno C. carcharias and C. megalodon 12:15-12:30 Anna Jerve Lamnid Sharks 12:30-2:00 Lunch Break Afternoon Power Point Presentation Uploading 2:00-2:15 Roger Wood Turtles 2:15-2:30 Robert Weems Crocodiles 2:30-2:45 Storrs Olson Birds 2:45-3:00 Michael Habib Morphology of Pelagornis 3:00-3:15 Ralph Eshelman, B. Beatty & D. Domning Terrestrial Vertebrates 3:15-3:30 Coffee/Juice Break 3:30-3:45 Irina Koretsky Seals 3:45-4:00 Daryl Domning Sea Cows 4:00-4:15 Jennifer Gerholdt & S.